Kommentar zu Bereschit 6:22

ויעש נח THUS DID NOAH — This refers to the building of the Ark (Genesis Rabbah 31:14).

AND NOAH DID THUS; ACCORDING TO ALL THAT G-D HAD COMMANDED HIM, meaning that he constructed the ark and gathered the food. Scripture’s intent in saying, And Noah did… so did he, is to explain that he did not omit a thing from all that G-d had commanded him.

ויעש נח, Noach built the ark in accordance with all the instructions given to him by G’d. He built its dimensions of length, width and height exactly as he had been commanded. He built the many cabins, and collected the various types of plants and fruit to serve as food for the journey.

ויעש נח ככל אשר צוה אותו אלוקים, “Noach carried out all the instructions G’d had given him.” He constructed the ark, collected the food supplies, etc. The reason why the Torah appears to repeat itself in 7,5 where it again mentions that Noach had carried out his instructions, is to make us aware that he did not skip performing any part of G’d’s instructions to him.

ויעש נח, “Noach did, etc.” These words refer to Noach constructing the Ark. The next words i.e. כן עשה, “so he did,” refer to Noach bringing in the various species in pairs as well as stocking the Ark with the necessary food supply, the appropriate food for each species.

This refers to his constructing the ark. Rashi is answering the question: Doesn’t “Noach did so” imply that he entered the ark, as commanded? But afterwards it says (7:1), “Adonoy said to Noach, Come into the ark...” Clearly, Noach did not yet enter the ark! Perforce, “This refers to his constructing the ark.”

כן עשה, “so he did.” This is a reference to bringing all these various kinds of food inside the ark.